When a speaker begins a story in the opener and concludes it in the closer, this is called a strategy?

When a speaker begins a story in the opener and concludes it in the closer, this is called a hook strategy

Explanation: There are several kinds of hooks that can be used but telling a story at the beginning and concluding it in the closer is a fantastic way to engage the audience. The hook strategy consists in giving the audience engaging material to keep their attention.

an informal structure in a bureaucracy would be something like so-called "office politics". where there's a formal structure set up for the organization, but then an informal subculture as well that has a way of organizing the bureaucracy further. this can be positive because it sets up an added degree of organization, albeit informal, within the bureaucracy.

answer; night terrors;